PowerStop
PowerStop - Front Coated Hat and Edge Rotor

PowerStop AR8638SCR Disc Brake Rotor - Front

Brand PowerStop AR8638SCR
Position Front
Discard Thickness 1.08
Discard Thickness 27.50
Nominal Thickness 1.14
Nominal Thickness 28.90
Balancing Type Mill balanced
Construction Full cast
Rust Resistant Coating Yes
Overall Height 2.15
Overall Height 54.70
Outside Diameter 10.79
Outside Diameter 274.00
ABS Tone Ring Included No
Surface Type Smooth
Solid Or Vented Type Rotor Vented
Mounting Bolt Hole Circle Diameter 120.70
Mounting Bolt Hole Circle Diameter 4.75
Stud/Lug Hole Quantity 5
Product line PowerStop - Front Coated Hat and Edge Rotor
Fits Chevrolet, GMC, Isuzu, and Oldsmobile · 38 vehicles

OE-style replacement. Direct bolt-on rotor built to match original equipment specifications.

Corrosion-resistant coating. Silver epoxy protects the hat, edge, and vanes from rust.

Vented full cast design. Smooth braking surface with mill-balanced construction for consistent operation.

Cross-references 18060691 for the same application. See all 1.

$69.13Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.

Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Disc Brake Rotors are typically replaced in pairs, axle by axle.
Order total $69.13
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Coated OE-Style Front Rotor

PowerStop AR8638SCR is a direct bolt-on disc brake rotor built to match original equipment specifications. It is a vented, full cast rotor with a silver epoxy coating on corrosion-prone areas to help preserve appearance behind alloy wheels.

Fits 1997-2005 Chevrolet Blazer, front; Fits 2005 GMC Jimmy, front; Fits 1997-2002 GMC Jimmy, front; Fits 1998-2004 Chevrolet S10, front; Fits 1998-2004 GMC Sonoma, front; Fits 1997-2001 Oldsmobile Bravada, front; Fits 1998-2000 Isuzu Hombre, front.

Key Features

  • Direct bolt-on replacement for original equipment fitment.
  • Silver epoxy coating on the hat, outer edge, and vanes for corrosion resistance.
  • Vented, full cast construction with smooth braking surface.
  • Mill balanced to support consistent rotor operation.
  • Matches OE weight and vane count for application-specific fitment.

Detailed Description

PowerStop AR8638SCR is part of the brand’s coated hat and edge rotor line, which focuses on OE-style replacement rotors with added corrosion protection. The coating is applied to exposed areas that are most likely to rust, helping the rotor maintain a cleaner appearance in wheel openings. With a 10.79-inch outside diameter, 5-lug bolt pattern, and vented design, this rotor is specified for front brake applications on Chevrolet Blazer, GMC Jimmy, Chevrolet S10, GMC Sonoma, Oldsmobile Bravada, and Isuzu Hombre models listed in the fitment data. This part cross-references Monroe Shocks & Struts (e.g., 18060691) for the same application. AR8638SCR is engineered to follow OE dimensions and vane count for proper installation and performance alignment.

What It Is Used For

  • Replacing a worn or rusted front brake rotor.
  • Addressing brake pulsation caused by rotor wear or thickness variation.
  • Restoring braking surface condition after corrosion buildup.
  • Maintaining a cleaner rotor appearance behind alloy wheels.
  • Returning OE-style brake performance on listed applications.

Installation Notes and Tips

Verify rotor diameter, bolt circle, and vented construction against the removed part before installation. Clean the hub mounting surface thoroughly to reduce runout concerns, and follow proper brake service procedures when replacing rotors. Confirm front-axle application and vehicle-specific fitment before ordering AR8638SCR.

Quality Assurance

PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for application-specific fitment.

This part fits 38 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelDrive TypePositionNotes
2005ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2005GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
2004ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2004ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
2004GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2003ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2003ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
2003GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2002ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2002ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
2002GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
2002GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2001ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2001ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
2001GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
2001GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2001OldsmobileBravada—FrontPowerStop - Front Coated Hat and Edge Rotor
2000ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
2000ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
2000GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
2000GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2000IsuzuHombre4WDFrontPowerStop - Front Coated Hat and Edge Rotor
2000OldsmobileBravada—FrontPowerStop - Front Coated Hat and Edge Rotor
1999ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
1999ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
1999GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
1999GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1999IsuzuHombre4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1999OldsmobileBravada—FrontPowerStop - Front Coated Hat and Edge Rotor
1998ChevroletBlazer—FrontPowerStop - Front Coated Hat and Edge Rotor
1998ChevroletS104WDFrontPowerStop - Front Coated Hat and Edge Rotor
1998GMCJimmy—FrontPowerStop - Front Coated Hat and Edge Rotor
1998GMCSonoma4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1998IsuzuHombre4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1998OldsmobileBravada—FrontPowerStop - Front Coated Hat and Edge Rotor
1997ChevroletBlazer4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1997GMCJimmy4WDFrontPowerStop - Front Coated Hat and Edge Rotor
1997OldsmobileBravada—FrontPowerStop - Front Coated Hat and Edge Rotor
Directly replaces or cross-references 1 part number
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
18060691